Golden Metallic Longhorn vs Toadflax Seed Weevil

Side-by-side species comparison

Attribute Golden Metallic Longhorn Toadflax Seed Weevil
Scientific Name Tmesisternus isabellae Gymnetron antirrhini
Order Coleoptera Coleoptera
Family Cerambycidae Curculionidae
Size 20-35 mm 2-3 mm
Habitat Mountains Farmland
Diet Wood Feeders Seed Feeders
Regions Southeast Asia (Indonesia, Papua region) Europe
Conservation Data Deficient Least Concern

Golden Metallic Longhorn

A rare longhorn beetle with striking golden or coppery metallic elytra covered in a fine pubescence. The body is elongated with very long antennae banded in black and gold.

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Did You Know?

The metallic coloration changes depending on ambient humidity, appearing more golden in dry conditions and more coppery when wet.

Toadflax Seed Weevil

A small dark weevil that develops inside the seed capsules of toadflax and snapdragon plants. Larvae consume developing seeds. Part of the biological control program for invasive toadflax.

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Did You Know?

Larvae can destroy up to 90% of seeds in a toadflax capsule, significantly reducing plant reproduction.